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Mind the Margin — Il Margine

Independent price comparison

UK bookmakers. Mind the margin.

Same match. Different prices. See which bookmakers built more margin into their football and tennis markets — and what that means when you compare a bet.

Dated evidence, not a live price board

5 Sept 2026, 11:34 UTC · 4 events · 21 bookmakers measured. Small samples show price differences, not lasting superiority.

Independent price intelligence

What a bet costs, market by market

Compare the margin built into complete fixed-odds markets. Rankings belong to the selected market, never to a bookmaker overall.

Captured

5 Sept 2026, 11:34 UTC

Coverage

21/22

books returned prices

4 captured events2 sports7 measured marketsOne-off snapshot

Choose market

Football snapshot

Match Winner

Normalised margin · lower means less built into the market. Select a row for overround and samples.

Thin sample2 events · 21 books
Cheapest
1.92%
AK Bets
Median
5.17%
21 books measured
Dearest
8.54%
2 books tied
Market spread
6.62pp
cheapest to dearest

Familiar UK names, measured in this market

A shortcut to eight familiar brands. Rank is against the full measured field, regardless of partner status.

Snapshot depth: 2 events and 2 complete price sets per book. Gaps under 0.50pp are de-emphasised at this depth.

21 of 21 measured books · ranks and benchmarks always use the full field

Compare books across every football marketOpen matrix

The same bookmaker can be cheap in one market and expensive in another. Colours show position inside each market only.

Cross-market margin matrix for Football
BookmakerMatch WinnerOver/UnderCornersBTTSDraw No Bet
10BET4.60%5.51%7.15%6.16%7.31%
AK Bets1.92%6.04%10.77%2.07%5.83%
Bet3655.10%4.22%7.32%6.67%6.25%
BetAhoy5.02%6.66%6.53%6.13%6.20%
Betfred5.26%6.11%-7.34%6.86%
BetGoodwin5.02%6.66%6.82%6.13%5.97%
BetMGM6.66%6.34%9.10%7.14%5.77%
BetTom5.02%6.66%6.82%6.13%6.20%
BetVictor5.17%5.25%8.25%7.71%6.77%
Betway6.48%5.67%7.97%6.67%6.11%
BoyleSports4.91%5.95%6.54%7.69%6.11%
Coral8.54%8.49%7.16%7.54%7.20%
IvyBet3.25%4.34%8.03%7.36%7.73%
Ladbrokes8.54%6.74%7.16%7.54%7.20%
Paddy Power5.88%7.53%7.15%7.60%7.54%
PricedUp3.33%6.14%10.77%6.67%5.83%
QuinnBet6.12%6.13%7.11%6.03%5.84%
Sky Bet5.67%5.62%5.03%6.13%6.25%
Star Sports5.79%6.14%10.77%6.67%-
Unibet4.31%4.80%6.67%6.32%5.79%
William Hill6.10%5.84%5.78%6.36%7.05%
Bookmaker coverage · 22 listed

Coverage belongs to this capture. Missing prices are never carried forward from an older snapshot.

  • 10BETPrices captured
  • AK BetsPrices captured
  • Bet365Prices captured
  • BetAhoyPrices captured
  • BetGoodwinPrices captured
  • BetMGMPrices captured
  • BetTomPrices captured
  • BetVictorPrices captured
  • BetfredPrices captured
  • BetwayPrices captured
  • BoyleSportsPrices captured
  • CoralPrices captured
  • IvyBetPrices captured
  • LadbrokesPrices captured
  • Paddy PowerPrices captured
  • PricedUpPrices captured
  • QuinnBetPrices captured
  • Sky BetPrices captured
  • Star SportsPrices captured
  • UnibetPrices captured
  • Virgin BetNo prices returned
  • William HillPrices captured
Not measured in this snapshot (1)

Goalscorer

Anytime goalscorer selections overlap, so they do not form a complete outcome set.

What margin means

Normalised margin is 1 − 1/book total. It describes the prices under proportional assumptions, not actual bookmaker profit.

Why markets are missing

Every mutually exclusive outcome must exist at the identical line. Over-only prices are not enough.

How to read the scale

Bars show position inside this market only. The white tick marks its median bookmaker.

Read the price, not the promotion

Understand the numbers

Overround

Turn every decimal price into an implied probability, then add them. A book totalling 106% has a 6% overround.

B = 1/home + 1/draw + 1/away

The margin we rank

Normalising that 106% book gives 5.66%: 1 − 1/1.06. It is a pricing measure under proportional assumptions, not a report of the bookmaker’s profits.

Try the margin calculator →

Your selection still matters

A bookmaker can have a lower overall margin but a shorter price on your team. Compare the exact selection, line and settlement rules before choosing where to bet.

Learn about fair odds and value →

A difference you can count

2.00 or 2.10? On £20, that is £2.

Same winning selection, same stake: £40 returned at 2.00 or £42 at 2.10. Both include your stake. Shopping for a price improves the payout; it does not make the selection more likely to win.

£20 at 2.00£40Total return if won
£20 at 2.10£42£2 more if won

Behind the comparison

How we measure it

  1. 01

    Complete markets

    All mutually exclusive outcomes must be present from one bookmaker at the same line. Incomplete prices and exchange markets are excluded.

  2. 02

    One contribution per event

    We take the median across each bookmaker’s available alternate lines, then average events equally within each market. Extra lines do not add extra event weight.

  3. 03

    Show the limits

    Available line menus can differ between bookmakers. These market-family summaries are not a matched-line betting test. Each row shows its sample count; close positions in this small capture should not be overinterpreted.

Before you compare

Which UK bookmaker has the lowest margin?

It depends on the market and when you look. Choose football or tennis, then a market, to see the measured order. These are dated observations from a small sample, not a permanent ranking of bookmakers. The lowest market margin also does not guarantee the best price on your selection.

What is the difference between overround and margin?

Add 1 divided by each decimal price to get the book total, B. Overround is (B − 1) × 100%. The ranking uses normalised margin, (1 − 1/B) × 100%, which puts that excess on a turnover basis under proportional pricing assumptions. Neither tells you the bookmaker’s actual profit or your personal expected loss.

Are these today’s odds?

No. This is an archived capture from 5 Sept 2026, 11:34 UTC. Prices can change substantially. Check the current odds and settlement terms before making any comparison. We do not replace a missing quote with one from an older capture.

Why can’t every player-prop market be ranked?

An over-only price cannot reveal the full market margin. We need both sides of the same line, from the same bookmaker and capture. Anytime goalscorer selections overlap, so adding their implied probabilities does not produce a valid market overround.

Are exchange prices included?

No. Exchange back and lay prices, available liquidity and commission require a different comparison. This table covers fixed-odds sportsbooks only; it does not treat an exchange as a zero-margin bookmaker.

Do partner links affect the rankings?

No. Rankings are calculated from the recorded prices. Partner links appear separately below and may earn Il Margine a commission. There are no paid positions in the margin table.